[ Present Perfect Tense ]
Motocross has been on Olympic sport ______ 2008.
A. for
B. since
C. from
D. already

Random Topics:
Present tense AffirmativeNoun QuantifiersPossessive NounsGrammar, Literature, and VocabularyGerund/ To Verb/ VerbInfinitives and ING FormsTenses and ConclusionsModals and Semi-ModalsHow much or How many?Comparative and Superlative AdjectiveOther quiz:
Grammar › ViewMay I use your ___________ cell phone to make a quick call?
A. a
B. an
C. x
D. the
Vocabulary › View
In an experiment, the factor whose value changes because of a change in the independent variable.
A. Independent Variable
B. Control Variable
C. Dependent Variable
D. Convection Variable
E. Constant Variable
Grammar › ViewI invited Ian to the party, … he didn’t want to come.
A. so
B. because
C. but
D. because
Conjunctions › View
The weather was so cold and wet, ………we enjoyed very much.
A. so
B. for
C. yet
